nix-helpers: 300668b7d131c53c572afdb4ede76e093673e085

     1: # Remove disallowed characters from a string, for use as a name
     2: { lib }:
     3: 
     4: with builtins;
     5: with lib;
     6: stringAsChars (c: if elem c (lowerChars ++ upperChars) then c else "")